论文标题
$^{87} $ sr的光相关光谱
Photoassociative Spectroscopy of $^{87}$Sr
论文作者
论文摘要
我们演示了超速费米克$^{87} $ sr原子的光相关（PA）。一系列分子状态在$^1σ^+$ $ $ $ 5S^2 \，^1 $ s $ _0+5s5p \，^1 $ p $ _1 $分子潜力符合半经典的LEROY-LEROY-BERNSTEIN模型和基于预测$ $ $ $^$^$^$^$^1 $^1 潜在的。进行了类似的测量和分析，对玻色粒同位素$^{84} $ sr和$^{86} $ sr进行了，允许对激发态潜力的远距离部分进行组合分析，并确定$ 5S5P \，^1 $ p $ p $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ _1 $ 5.20 \ 5.20 \ ns pm 0.02 $ ns。结果可以在广泛的实验条件下预测PA速率。
We demonstrate photoassociation (PA) of ultracold fermionic $^{87}$Sr atoms. The binding energies of a series of molecular states on the $^1Σ^+_u$ $5s^2\,^1$S$_0+5s5p\,^1$P$_1$ molecular potential are fit with the semiclassical LeRoy-Bernstein model, and PA resonance strengths are compared to predictions based on the known $^1$S$_0+^1$S$_0$ ground state potential. Similar measurements and analysis were performed for the bosonic isotopes $^{84}$Sr and $^{86}$Sr, allowing a combined analysis of the long-range portion of the excited-state potential and determination of the $5s5p\,^1$P$_1$ atomic state lifetime of $5.20 \pm 0.02$ ns. The results enable prediction of PA rates across a wide range of experimental conditions.
